Note that only one timing interface should get loaded.

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@122977 65c4cc65-6c06-0410-ace0-fbb531ad65f3

configs/modules.conf.sample

@@ -37,3 +37,10 @@ load => res_musiconhold.so
 noload => chan_alsa.so
 ;noload => chan_oss.so
 ;noload => chan_console.so
+;
+;
+; Only load one timing interface.  If DAHDI is available, use that as it will
+; provide the best results.
+; 
+;noload => res_timing_dahdi.so
+;noload => res_timing_pthread.so